Home / 25,456.30-38,169.10-11,413.79

Finding the Fourth Proportional to 25,456.30, 38,169.10 and 11,413.79

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Solution

The fourth proportional to 25,456.30, 38,169.10 and 11,413.79 is: 17,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456.30 : 38,169.10 = 11,413.79 : x
  2. Step 2: Convert to fraction form
    25,456.30/38,169.10 = 11,413.79/x
  3. Step 3: Cross multiply
    25,456.30x = 38,169.10 × 11,413.79
  4. Step 4: Simplify right side
    25,456.30x = 435,653,872.51
  5. Step 5: Solve for x
    x = 435,653,872.51/25,456.30
  6. Step 6: Final answer
    x = 17,113.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.